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Hitoshi Yoshimoto
Graduate Sch. Dentistry, Second Dept. Oral and Maxillofacial surjery, Osaka Dental Univ.
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Masahiro Nakajima
Second Dept. Oral and Maxillofacial surjery, Osaka Dental Univ.
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Kenji Kakudo
Second Dept. Oral and Maxillofacial surjery, Osaka Dental Univ.